Technical illustration. Representative component image; exact configuration and appearance may vary. Images are for reference only. The supplied part’s appearance may differ.
1SAZ711201R1021 — Thermal overload relay
relayPart number: 1SAZ711201R1021
ABB 1SAZ711201R1021, also designated T16-0.74, is a three-pole thermal overload relay with an adjustable 0.55–0.74 A current range. It has one normally open and one normally closed auxiliary contact, selectable manual or automatic reset, and screw terminals.
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Technical specifications
| Manufacturer | ABB |
|---|---|
| Part number | 1SAZ711201R1021 |
| Category | Electrical & controls |
| Time-Current Characteristic Curve | Tripping characteristic - Thermal overload relay T16-0.74 |
| Product Net Width | 45 mm |
| Product Net Height | 76.7 mm |
| Product Net Depth / Length | 53.5 mm |
| Product Net Weight | 0.1 kg |
| Setting Range | 0.55–0.74 A |
| Rated Operational Voltage | Main circuit 690 V AC; auxiliary circuit 600 V AC/DC |
| Rated Operational Current (I e ) | 0.74 A |
| Rated Frequency (f) | Auxiliary Circuit 50 Hz |
| Rated Impulse Withstand Voltage (U imp ) | Auxiliary Circuit 6 kV |
| Rated Insulation Voltage (U i ) | 690 V |
| Number of Poles | 3 |
| Number of Auxiliary Contacts NC | 1 |
| Number of Auxiliary Contacts NO | 1 |
| Number of Protected Poles | 3 |
| Conventional Free-air Thermal Current (I th ) | Auxiliary Circuit NC 6 A |
| Rated Operational Current AC-15 (I e ) | (120 V) NC 3 A |
| Rated Operational Current DC-13 (I e ) | (125 V) NC 0.55 A |
| Degree of Protection | IP20 |
| Connecting Capacity Auxiliary Circuit | Flexible with Ferrule 1/2x 0.75 ... 2.5 mm² |
| Connecting Capacity Main Circuit | Flexible with Ferrule 1/2x 0.75 ... 4 mm² |
| Tightening Torque | Auxiliary Circuit 1 ... 1.2 N·m |
| Wire Stripping Length | Auxiliary Circuit 9 mm |
| Power Loss | at Rated Operating Conditions per Pole 1.1 ... 2.0 W |
| Maximum Operating Voltage UL/CSA | Main Circuit 600 V AC |
| Contact Rating UL/CSA | (NC:) B600 |
| Connecting Capacity Main Circuit UL/CSA | Flexible 1/2x 18-12 AWG |
| Connecting Capacity Auxiliary Circuit UL/CSA | Flexible 1/2x 18-12 AWG |
| Published component type | Thermal overload relay |
| Reference status | Published part reference; specification and fitment require confirmation |
| Availability | On request |
| Reset method | Manual or automatic, selectable |
| Connection type | Screw terminals |
Catalogue information may contain errors or be out of date. Full specifications and verified details are available on request. Confirm the part number and equipment fitment with us before ordering.
Product questions
What current range does the ABB T16-0.74 overload relay cover?
The adjustable current setting range is 0.55–0.74 A. Check the motor nameplate current and the complete protection requirements before selecting the relay.
Which contactors can the 1SAZ711201R1021 relay mount on?
The T16-0.74 is listed for direct attachment to ABB AS09–AS16 mini contactors. Confirm the exact contactor model, equipment serial number and electrical requirements before ordering; this listing alone does not establish machine fitment.
Does the T16-0.74 have manual reset and auxiliary contacts?
Yes. The relay has selectable manual or automatic reset and one normally open plus one normally closed auxiliary contact.
Researched on:
Research information may be outdated. Confirm fitment and specifications with our team before ordering.